Start with a small version of the base image: -

2. Create a multi-line argument in a structured way: -

3. Minimize the number of layers: -

4. Leverage the build cache: -

5. Order the steps in the Dockerfile from least to most frequently changing content: -

6. Prefer COPY over ADD:-

7. Only install what you need: -

8. Use Official images with tag specific and avoid the latest tag: -

9. Don’t store secret or sensitive information in Dockerfile: -

10. Don’t install SSH or similar service: -

11. Use .dockerignore file: - 

12. Use multi-stage builds: -

13. Run container as non-root user: -

14. CMD vs ENTRYPOINT ?? : -